IQXO-625, -626, -627, -628 MILITARY OSCILLATORS
ISSUE 8; 3 APRIL 2009
Description
0.8 max
Outline (mm)
5.1 max
Pin connections
1. N/C
7. GND
8. Output
14. +Vs
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14-pin DIL compatible resistance welded enclosure,
hermetically sealed with glass to metal seals and gold plated
pins and bases. Available non-screened (IQXO-625, -627)
and fully screened (IQXO-626, -628)
14-pin DIL
250kHz to 72MHz
HCMOS/TTL
Drive Capability: 50pF max or 10TTL
Non tri-state (IQXO-625, -626)
Tri-state (IQXO-627, -628)
Ø0.45
4.0 min
14
15.24
21.0 max
8
Package Outline
CLOCK
OSCILLATORS
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Frequency Range
Output Compatibility & Load
13.08 max
7.62
1
7
Frequency Tolerance @ 25°C (Optional)
±10ppm, ±25ppm
±50ppm, ±100ppm (inclusive of supply voltage variations
over the operating temperature range)
–55 to 125°C
–55 to 125°C
No connection or Logic ‘1’ to pin 1 enables oscillator output
Logic ‘0’ to pin 1 disables oscillator output; when disabled the
oscillator output goes to the high impedance state
Disable current 50µA typical
Bump: 4000 bumps at 391m/s
2
in each of the three mutually
perpendicular planes
Hermetic Seal: not to exceed 1 x 10
-8
mBar litres of Helium
leakage
Humidity: steady state: in accordance with test Ca of
IEC 60068-2-3, for 56 days at 40°C at a relative humidity of
93%, cyclic: in accordance with test Db variant 1 of
IEC 60068-2-30, at severity (b), 55°C for six cycles
Shock: 981m/s
2
for 6ms, three shocks in each direction along
the three mutually perpendicular planes
Solderability: test IEC 60068-TA
Vibration: 10 to 60Hz 0.75mm displacement, 60 to 2000Hz
98.1m/s
2
acceleration, 30 minutes in each of three mutually
perpendicular planes
Frequency Stabilities
Output Waveform
tf
tr
+Vs
90%Vs
Operating Temperature Range
50%Vs
10%Vs
t
0V
Duty cycle = t x 100(%)
T
Storage Temperature Range
Tri-state Operation (IQXO-627, -628)
T
2.4V
1.4V
0.4V
Environmental
Screening on Each Device (IQXO-626, -628)
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Acceleration: 49000m/s
2
for 1 minute in the ‘Y1’ plane
High Temperature Storage: 24hrs at 150°C
Rapid Change of Temperature: –55 to 125°C, 10 cycles
Dynamic burn-in for 168hrs at 125°C
Check all parameters & assess
IQD + Model Number + Frequency Stability Code +
Frequency Tolerance Code (Optional) + Frequency + Date
Code
Bulk
Frequency + Model Number + Frequency Stability
Marking Includes
Packaging
Minimum Order Information Required
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
Electrical Specifications - maximum limiting values
Frequency Range
250.0kHz to <8.0MHz
8.0MHz to <23.0MHz
23.0MHz to <48.0MHz
48.0MHz to <72.0MHz
Ordering Example
Frequency
Model number: -625, -626 = Non tri-state, -627, -628 = Tri-state
Frequency Stability: B = ±50ppm, C = ±100ppm
Frequency Tolerance @25°C: E = ±10ppm, F = ±25ppm
Please note: Code combination B F is not available
Test Circuit
Frequency Stability
±50ppm, ±100ppm
Supply Voltage Supply Current Rise Time (tr)
5V ±0.5V
5mA
10mA
50mA
65mA
3ns
3ns
50.0MHz IQXO-625 B E
10ns
5ns
Fall Time (tf)
10ns
5ns
Duty Cycle
45/55%
40/60%
Model Number
IQXO-625, -626,
-627, -628
Oscillator
1
7
14 8
A
+Vs
V
0.1µ F
15pF*
Oscilloscope
Frequency counter
*Inclusive of jigging and equipment capacitance
Note: Pin 1 = no connection on non tri-state models
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
Tel: +44 (1460) 270200; Fax: +44 (1460) 72578;
Email: info@iqdfrequencyproducts.com Web: www.iqdfrequencyproducts.com
CLOCK
OSCILLATORS
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